about my chosen stamp when it was identified. I will do
It was engraved by renowned Polish engraver Czeslaw Slania,
acknowledged in the lower right corner.
Issued by Greenland on 12 Sep 1968, it is a semi-postal, with
face value 60øre for postage, plus 10øre for child welfare. The
subject depicts two Greenlandic boys in Copenhagen, visiting the
famous Round Tower.
https://www.visitcopenhagen.com/copenhagen/planning/round-tower-gdk410741The 17th century tower and observatory Rundetaarn, or the round tower,
is the oldest functioning observatory in Europe.
When Christian IV built the tower, Denmark was quite famous for its astronomical
achievements thanks to the astronomer Tycho Brahe. When he died in 1601,
the King wished to continue Brahe's research, and thus the round tower came into being.
It has been a while since the scientists left, but the observatory is still used by amateur
astronomers and the many visitors. The observatory is encircled by an outdoor platform
from which you have a magnificent view of the old part of Copenhagen.
To get there you need to walk up the spiral walk, which is 268.5 meters long at the outer
wall and only 85,5 meters long close to the core of the building. This means that you walk
around 209 meters to get to top even though the tower is only 36 meters tall...
This walk also leads to the library hall, which once housed the entire book collection of the
university. The famous Danish writer H.C. Andersen used to visit the library and he found
inspiration for his work here. Today the hall serves as the framework for exhibitions of art,
culture, history and science...
As a new attraction you can now see the tower's core by standing on a glass floor, hovering
25 metres above the ground. The glass is more than 50 mm thick and can carry up to 900 kg
per square meter.
As usual, Wikipedia has much to tell and show us, including this view: